Flash microcontroller development kit user manual, 3 ok console, Modem – Encore electronic Zilog Z8ENCORE000ZCO User Manual
Page 36: Reset, Modem's agnd, Modem connectors
UM014605-0208
Schematics
Z8 Encore!
®
Flash Microcontroller Development Kit
User Manual
32
Figure 11. Z8 Encore!
®
Evaluation Board (96C0868-001 Rev.C)
RESET
3.3 OK
CONSOLE
EN_IRDA
DCD
MODEM's
AGND
DTR
RX
MODEM CONNECTORS
TX
GND
MODEM
VDD
RXD0
CTS0
VCC
3.3V
5V
TXD0
RXD0
CTS0
VDD
TXD0
9VDC
GND
GND
PD4_RXD1
PD6_CTS1
PD5_TXD1
PF1_RTS1
PF2_DSR1
PF0_DTR1
MOD_VCC
M_RING
GND
PF4_RI1
PF3_DCD1
M_TIP
GND
-MRESET
DSR1
CTS1
RXD1
RI1
TXD1
RTS1
DTR1
DCD1
VDD
TXD1
RXD1
DSR1
DCD1
CTS1
RTS1
DTR1
RI1
VDD
VDD
VDD
VCC
VDD
GND
PA4_RXD0
PA5_TXD0
MOD_VCC
IRDA_SD
VDD
VDD
-1_CON_DIS
-1_CON_DIS
VDD
GND
GND
VDD
PA4_RXD0
-RESET
VCC
PA5_TXD0
PA3_CTS0
VDD
9VDC
GND
-0_CON_DIS
M_RING
-MOD_DIS
PF5
M_TIP
PF3_DCD1
PF0_DTR1
PD6_CTS1
PD4_RXD1
PF1_RTS1
PD5_TXD1
-MOD_DIS
PF2_DSR1
PF4_RI1
-DIS_IrDA
VDD
C20
0.1uF
R19
10K
R24
68
J2
HEADER 32
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
J11
con 3
1
2
3
C16
0.1
C27
0.1
C30
0.01
C25
0.1
C14
0.1uF
D10
2
1
R16
10K
D6
GREEN
2
1
D8
2
1
U20B
74LVC00/SO
4
5
6
14
7
R20
0
U17B
74LVC04/SO
3
4
14
7
SW4
R18
10K
P2
DB9 Male
5
9
4
8
3
7
2
6
1
U16
LT1086-3.3/TO220
1
3
2
GND
VIN VOUT
U18
MAX3245CAI
28
24
1
2
14
13
12
22
23
20
19
18
17
16
15
25
8
7
6
5
4
21
11
10
9
3
27
26
C1+
C1-
C2+
C2-
T1IN
T2IN
T3IN
FORCEOFF
FORCEON
R2OUTB
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
GND
R5IN
R4IN
R3IN
R2IN
R1IN
INVALID
T3OUT
T2OUT
T1OUT
V-
V+
VCC
C17
0.1
D9
2
1
U20A
74LVC00/SO
1
2
3
14
7
C52
330nF
R21 0
C28
0.1
R14
680
+
C22
47uF
C18
0.1
R25
2R7
J10
1
2
U21
ZHX1810
2
4
3
1
5
6
0
TXD
SD
RXD
LEDA
VCC
GND
T
P3
PWR JACK
2
3
1
R22 0
C44
0.1uF
J4
HEADER 2
1
2
+
C23
100/6.3
D7
2
1
U19
DS1233A-15
1
2
3
GND
RESET
VCC
C21
0.1
+
C15
100/10
U15
MAX3222
1
2
4
5
6
13
12
15
10
3
7
17
8
16
9
20
19
18
11
14
EN
C+
C1-
C2+
C2-
T1IN
T2IN
R1OUT
R2OUT
V+
V-
T1OUT
T2OUT
R1IN
R2IN
SHDN
VCC
GND
NC
NC
C24
0.1
P1
DB9 Female
5
9
4
8
3
7
2
6
1
F1
RXE160
J3
HEADER 9
1
2
3
4
5
6
7
8
9
R15
10K
R17
100K
U17A
74LVC04/SO
1
2
14
7
U14
LM7805C/TO220/0.5A
1
3
2
IN
OUT
GND
D5
S2G
TP1
1
2
3 4
5
R23 0
C19
0.1uF
TP2
1
2
3 4
5
C29
0.1
C26
0.1